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Related Experiment Video

Updated: May 30, 2026

Implantation Protocol of the Foldable Capsular Vitreous Body for Complex Vitreoretinal Surgery

Implantation Protocol of the Foldable Capsular Vitreous Body for Complex Vitreoretinal Surgery

Published on: April 14, 2026

Transconjunctival 20-gauge vitrectomy outcomes.

Manthan Shah¹, Rashmi Kapur, Sharath Raja

¹University of Illinois Eye and Ear Infirmary, Chicago, Illinois, USA.

Ophthalmic Surgery, Lasers & Imaging : the Official Journal of the International Society for Imaging in the Eye

|August 2, 2011

Summary

The transconjunctival 20-gauge trocar-cannula (20g-TCV) system showed transient hypotony but no severe complications. Visual acuity improved significantly after the procedure.

Related Experiment Videos

Last Updated: May 30, 2026

Implantation Protocol of the Foldable Capsular Vitreous Body for Complex Vitreoretinal Surgery

Implantation Protocol of the Foldable Capsular Vitreous Body for Complex Vitreoretinal Surgery

Published on: April 14, 2026

Area of Science:

Ophthalmology
Surgical Innovation
Retinal Surgery

Background:

The transconjunctival 20-gauge trocar-cannula (20g-TCV) system is a newer surgical approach.
Understanding its short-term safety profile is crucial for adoption.

Purpose of the Study:

To evaluate the short-term complication profile of the 20g-TCV system.
To assess rates of hypotony, visual acuity changes, and other complications.

Main Methods:

A prospective study included 127 eyes of 120 patients undergoing primary 20g-TCV.
Primary outcome: short-term hypotony. Secondary outcomes: visual acuity, sclerotomy suture rates, and complications.

Main Results:

Transient postoperative hypotony occurred in 10.2% (day 1) and 4.7% (week 1), resolving spontaneously.
No endophthalmitis was observed.
Mean visual acuity improved from 20/375 to 20/221 at 3 months.

Conclusions:

The 20g-TCV system is associated with transient hypotony but generally safe in the short term.
No significant intraoperative or postoperative complications were noted.
Sclerotomy suture placement may be considered to mitigate hypotony risk.